o actual speed
Actual speed of the line, in bits per second. For internal clocking
on some microcoded devices, a value of 0 indicates that the device
has selected a speed appropriate for the connected interface. For
external clocking, a value of 0 indicates that the speed is unknown.
o device availability (OpenVMS)
Indicates whether the hardware device associated with the named
communications port is installed. Support is mandatory on systems
that support line card hot swap. When device availability has the
value no device, the interface state takes the value
pending DTE Ready and the interface type attribute takes the value
unknown.
o interface state
State of the physical interface on the line.
connected A switched line is connected but not yet ready
to transmit or receive data.
connecting Call setup on a switched line is in progress.
disconnecting Call clear on a switched line is in progress.
dte not ready The entity is disabled.
dte ready The DTE is ready, but the DCE is not ready.
full enabled The line is enabled for data transmission and
reception.
pending dte ready The entity is enabled but the ready
state cannot be entered. For example, the
communications cable is not connected.
ready Both DTE and DCE are ready.
receive enabled The line is ready to receive data.
transmit enabled The line is ready for data transmission.
o interface type
Type of the physical interface connection.
loopback A loopback connector has been detected on the
interface.
no cable No cable is connected to the interface.
null modem A null modem cable is connected to the interface.
rs232c A cable conforming to the RS232C standard is
attached.
rs422 A cable conforming to the RS422 standard is
attached.
rs423-v24 This value appears where a cable is attached
but the connector cannot distinguish between the
RS423 and V.24 standards.
rs449 A cable conforming to the RS449 standard is
attached.
unknown A cable is attached but its type is not known
v28 A cable conforming to any of the CCITT V.24, V.28
standards, the IS 2110 standard, or the EIA-232-D
standard.
v35 A cable conforming to the V35 standard is
attached.
x.21 A cable conforming to the X.21 standard is
attached.
o loopback mode
Type of loopback in use on the line. The value of this status
attribute is determined by the startloop and stoploop commands.
connector Data is looped through a loopback connector
attached to the communications device.
device Data is looped in the communications device.
driver Data is looped in the driver of the
communications device.
external Data is looped through a null modem or a modem in
loopback mode.
local The communications device has switched its local
modem into loopback mode.
null The line is not in loopback mode.
remote The communications device has switched the remote
modem into loopback mode.
o modem type
String identifying the local modem. If this status attribute has
no value, the type could not be determined.
o state
Operating state of the line. The value of this attribute is
affected by the enable and disable commands.
off The line has been disabled
on The line has been enabled
o uid
Entity's unique identifier, which is generated when the entity is
created.